ABS Valves | McMaster-Carr

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	Body Material Body Material

Plastic

	Float Material Float Material

Plastic

	For Use With For Use With

Compressed Air

Water

	Pipe Size Pipe Size

1 1/4

1 1/2

	Connection Style Connection Style

Threaded

Clamp On

Quick Disconnect

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

	Inlet Pipe Size Inlet Pipe Size

1/4

1/2

	Maximum Pressure Maximum Pressure

	Valve Type Valve Type

Check

Float

Spool

	Valve Body Material Valve Body Material

Plastic

	Connection Type Connection Type


Pipe	Hose

	Seal Material Seal Material

EPDM Rubber/Stainless
Steel

Rubber

	Actuation Actuation

Manual

Pressure

	Shape Shape

	Straight

	End-to-End Length End-to-End Length

4 13/16"

	Color Color

	Black
	Green

	Valve Function Valve Function

Backflow Prevention

Directional Control

	Flow Pattern Flow Pattern

5/2

5/3 (Closed Center)

	Return Actuation Return Actuation

Spring

Hand

	Inlet Gender Inlet Gender

Female

	Flow Rate Flow Rate

22 gpm @ 50 psi

70 gpm @ 50 psi

	Maximum Temperature Maximum Temperature

100° to 199.9° F

200° to 249.9° F

	Material Material

Plastic

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11 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Matching Flow Diagrams to Replace an Air Directional Control Valve

Choosing an Air Directional Control Valve

Control the water level in spaces where a rod and lever won’t fit; these float valves have an internal float and connect to your pipe. When the water level reaches the bottom of the valve, the float rises to stop the flow. The discharge outlet is unthreaded and releases contents into your tank.

For technical drawings and 3-D models, click on a part number.

Inlet						Overall
Pipe Size	Thread Type	Gender	Discharge Hole Dia.	Flow Rate	Max. Pressure, psi	Dia.	Ht.	For Container Type	Float Material	Seal Material	Temp. Range, °F		Each
For Use With Water
Straight Valve Body
1/2	NPT	Female	3/8"	22 gpm @ 50 psi	65	2 13/16"	5 3/4"	Open Tank	ABS Plastic	Silicone Rubber	35° to 150°	00000000	000000
1	NPT	Female	3/8"	70 gpm @ 50 psi	100	3 3/4"	5"	Open Tank	ABS Plastic	Silicone Rubber	35° to 150°	00000000	00000

Backflow-Prevention Valves with Clamps for Sump Pumps

Prevent dirty water from flowing back to your pump. Valves have flexible couplers with hose clamps to slip over PVC tubing for easy installation. At least 2 psi is required to open valves. Install for horizontal or upward flow.

For technical drawings and 3-D models, click on a part number.

Pipe Size	Max. Pressure	Max. Flow Rate @ 10 Ft. of Head, gpm	Temp. Range, °F	Body Material	Color	Seal Material	End-to-End Lg.		Each
1 1/2, 1 1/4	25 psi @ 70 ° F	4.3	35° to 130°	ABS Plastic	Black	EPDM Rubber/Stainless Steel	4 13/16"	0000000	000000
2	25 psi @ 70 ° F	4.3	35° to 130°	ABS Plastic	Green	EPDM Rubber/Stainless Steel	6"	0000000	00000

Two-Speed Two-Action Air Directional Control Valves

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Also known as 4-way and 5/2 valves.

Valves with spring return actuation return to their original position as soon as you release the actuator.

Valves with hand return actuation stay actuated and return to their original position only when you move the actuator again.

Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.

For technical drawings and 3-D models, click on a part number.

									O'all
	No. of Flow Ports	Inlet Size	Outlet Size	Exhaust Connection Type	Max. Flow Rate, scfm @ 100 psi	Flow Coefficient (Cv)	Pressure Range, psi	Vacuum Rating, in. of Hg	Lg.	Wd.	Ht.	Mounting Fasteners Included		Each
Threaded Female Inlet × Threaded Female Outlet
Spring Return Actuation
B	5	1/4 NPT	1/4 NPT	Threaded	45	0.75	0-120	Not Rated	5 3/8"	2"	5 5/8"	No	0000000	0000000
Hand Return Actuation
B	5	1/4 NPT	1/4 NPT	Threaded	45	0.75	0-120	Not Rated	5 3/8"	2"	5 5/8"	No	0000000	000000

Two-Speed Two-Action Air Directional Control Valves with Full Shut-Off

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Also known as 4-way and 5/3 closed center valves.

Valves with spring return actuation go back to their original position as soon as you release the actuator.

For technical drawings and 3-D models, click on a part number.

									O'all
	No. of Flow Ports	Inlet Size	Outlet Size	Exhaust Connection Type	Max. Flow Rate, scfm @ 100 psi	Flow Coefficient (Cv)	Pressure Range, psi	Vacuum Rating, in. of Hg	Lg.	Wd.	Ht.	Mounting Fasteners Included		Each
Threaded Female Inlet × Threaded Female Outlet
Spring Return Actuation
B	5	1/4 NPT	1/4 NPT	Threaded	45	0.75	0-120	Not Rated	6 1/4"	2"	5 5/8"	No	0000000	0000000

Quick-Disconnect Garden Hose Couplings

Use these couplings if you need frequent access to a garden hose line—a complete coupling consists of a plug and a socket that connect and disconnect quickly. The compact design makes these couplings sleeker and easier to handle than cam-and-groove garden hose couplings. Couplings have a sleeve-lock socket. Connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

ABS plastic couplings offer comparable corrosion resistance to 303 stainless steel couplings, but are lighter in weight.

Couplings with shut-off valve have a valve in the socket that stops the flow of water when the coupling is separated.

For technical drawings and 3-D models, click on a part number.

Plug and Socket Sets

Plastic Coupling

			Plug		Socket
Socket Flow Control	Garden Hose Trade Size	Thread Type	Connection Style	Lg.	Connection Style	Washer Material	Lg.		Each
ABS Plastic
With Shut-Off	3/4	GHT	Quick Disconnect Male × Threaded Male	1"	Quick Disconnect Female × Threaded Female	TPR Rubber	2 1/2"	0000000	00000

Sockets

Straight Socket, Female Thread

			Socket
Socket Flow Control	Garden Hose Trade Size	Thread Type	Connection Style	Washer Material	Lg.		Each
ABS Plastic
With Shut-Off	3/4	GHT	Quick-Disconnect Female × Threaded Female	TPR Rubber	2 1/2"	00000000	00000

Washers for Socket and Plug Sets with Female GHT Threaded Connections

Washer Without Screen

Washer with Screen

Without Screen
ID	OD	Thick.	For Garden Hose Trade Size	For Hose ID	Material	Color	Screen Material	Pkg. Qty.		Pkg.
5/8"	1"	1/8"	3/4	1/2", 5/8", 3/4"	SBR Rubber	Red	__	10	00000000	00000
With Screen
9/16"	1"	1/8"	3/4	1/2", 5/8", 3/4"	SBR Rubber	Black	Stainless Steel	3	00000000	0000

How to Identify and Measure Fittings

Matching Flow Diagrams to Replace an Air Directional Control Valve

Choosing an Air Directional Control Valve

Extra-Compact Plastic Float Valves

Backflow-Prevention Valves with Clamps for Sump Pumps

Two-Speed Two-Action Air Directional Control Valves

Two-Speed Two-Action Air Directional Control Valves with Full Shut-Off

Quick-Disconnect Garden Hose Couplings